diff --git a/testsuite/reftests/background-origin.css b/testsuite/reftests/background-origin.css
index 53ad92b586..f4a3154848 100644
--- a/testsuite/reftests/background-origin.css
+++ b/testsuite/reftests/background-origin.css
@@ -7,7 +7,7 @@ window {
 button {
   border-width: 5px;
   border-style: solid;
-  border-color: rgba(255,0,0,0.5);
+  border-color: rgba(255,0,0,0.6);
   padding: 10px;
   background-color: rgb(0,0,255);
 
diff --git a/testsuite/reftests/reference-background-origin.png b/testsuite/reftests/reference-background-origin.png
index 3d02cb5b96..67e9c5816c 100644
Binary files a/testsuite/reftests/reference-background-origin.png and b/testsuite/reftests/reference-background-origin.png differ